Jiang hongbin¹ and Li longfei²

1. Associate Professor, Structural Engineering, School of Civil Engineering, Harbin Institute of Technology , Harbin , 150090, China, 86282081@163.com
2. Master, Structural Engineering, School of Civil Engineering, Harbin Institute of Technology , Harbin , 150090, China, alpha0335@163.com

ABSTRACT

The grouted concrete block masonry is composed of small size hollow concrete block, mortar and grout. To detect the compressive strength of grouted concrete block masonry, the convenient nondestructive detection measures that are used for concrete structures including: rebound method, ultrasonic method, pulling-out method and core drilling method, are proposed in this paper. In this paper, four types of detection tests on 25 grouted concrete block masonry specimens had been made. Experimental results show that these detection methods mentioned above are applicable for grouted concrete block masonry. Based on test results and analysis the formulas of compressive strength for four types of detection measure have been derived respectively, and some detection suggestions for concrete small hollow block, mortar and grout for concrete small hollow block have been given.

KEYWORDS: grouted concrete block masonry; compressive strength; nondestructive detection

B2-3